Jump to content

Log in or register to remove this advert

spudulike

Veteran Member
 View Profile  See their activity

  • Posts

    14,756

  • Joined

  • Last visited

  • Days Won

    8

 Content Type 

Everything posted by spudulike

  1. spudulike
    Just looked at one I have on the bench and if you actuate the choke - second picture lever on the left and then take it off so the choke is open again, when you rotate the black plastic assembly (bottom pic) the throttle cable is attached to, the fast idle should click off with an audible click. The rest is just inspection if this isn't happening
  2. spudulike
    You need to place the carb/air filter elbow on the carb and then apply the choke and fast idle positions to see what is going on with the mechanism.
  3. spudulike
    You could see if a dose of WD40 and a compressor will sort it and then try the more complex stuff.
  4. spudulike
    Well it sounds like the fast idle is stuck on somehow. I have seen bits of twig have this sort of effect on carb linkages but it sounds like you need to take a look at at the carb and throttle linkage.
  5. spudulike
    Glad it worked out and pleased our advice helped.
  6. spudulike
    Has someone had the carb elbow off and not meshed the carb to choke lever on reassembly. On the saw before starting it, you lift the choke lever, push it back on to fast idle setting and open the throttle, do you hear a slight click as the fast idle is released?
  7. spudulike
    I think most are different.
  8. spudulike
    Good job, the OEM case reassembly tool is a bit like your home made ones - better tan using the screws and risking damaging the thread. You probably know but you need to "de-stress" the bearings once assembled, using your tools, it may not be necessary but you basically give each end of the crank a couple of belts with a copper mallet. This sorts out any stress in the bearings usually from using the screws to draw the cases together.
  9. spudulike
    Yup, bare is best but don't get arrested!
  10. spudulike
    Yes, that was my first pressure test rig.
  11. spudulike
    A bent crank can rotate freely but if you look at the shaft on the clutch side when it is rotated, you will see it wobble if the crank is bent.
  12. spudulike
    Are you talking about the lobes being out of kilter? I have seen a 346 with a twisted crank. It was very visible on the clutch side when you rotated the engine. As ADW on big end play. When the big end fails, it tends to throw white metal bits all over the place messing up the bore, piston and ports.
  13. spudulike
    The purge shows it is probably the 50cc version as do the grey top cover clips. First thing to do is to check the piston out through the exhaust port and go from there. No problem on the advice!!
  14. spudulike
    That is a thread and the starting post was in 2011...much has happened since then. Never worked on a back pack strimmer to date BTW
  15. spudulike
    Those downpipes look quiet......not!!
  16. spudulike
    Thanks for letting us know, it shows we aren't all losing it and barking mad.....well not too much.
  17. spudulike
    As Pleasant says, it is running rich but do the simple thing first...clean the air filter thoroughly not just a wipe over, get some carb cleaner, WD40 or similar on it and a blast from a compressor air line. It is possible the air filter is blocked....you could fit a new one, they don't cost much. Take a look at the choke and ensure it is not flipping on somehow. Has someone been cocking around with the carb settings, won't be the first time. Are the blades free and reciprocating easily? If they are binding, it is possible that the machine isn't revving out and building up unburnt fuel. Check the plug, if it is black, the saw is rich and the plug should be tan if running correctly. If the plug isn't NGK or Bosch, change it and get one from a reputable dealer, there are a few knockoffs floating around
  18. spudulike
    Most likely a stuck needle valve but it is possibly a split, holed or damaged pump diaphragm....not the one with the round aluminium disk on it.
  19. spudulike
    A ... and the nipple should be the longer one.
  20. spudulike
    This thread reminds me of Pink Floyd's Comfortably Numb....the " Hello, is there anybody in there" springs to mind.
  21. spudulike
    With these carbs, if the diaphragm has a small nipple, the metering arm lines up with the carb body and if the diaphragm has the more pronounced nipple, it lines up with the cut out in the bottom of the diaphragm bowl. If you have done a few, you will know what I mean. With any saw that is playing up on idle or high revs, a full pressure and vac check is invaluable in proving the engine is airtight. Have you managed to do this yet? After 8 pages, I don't really want to check...sorry!
  22. spudulike
    How much compression has the engine got? If you can't pull it over, chances are that the carb has a faulty needle valve and has flooded the engine causing the crankcase to fill with fuel stopping you pulling it over. It is unlikely that someone has turned down the squish band, reduced the cylinder base thickness and fitted a pop up piston.
  23. spudulike
    Pretty painful, I wonder what career she would have taken had she not gone in to politics.
  24. spudulike
    The joy of autotune...it just adjusts for the mistakes made by others! It will run a tad better once a new rod is fitted.
  25. spudulike
    Nope, 346 just sounds and feels great and I like my 357.

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

Articles

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

  I accept